Advantech ADAM-4570 User Manual

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42  ADAM-4570/ADAM-4571/EDG-4504 User’s Manual
E th ern et
 
P L C  o r A D A M  
H o st A  
H o st B  
A D A M -4 5 7 0  
1. Users set up the time period that the ADAM-4570 waits for
the host PC to send commands.
2. If the time is over the set time, the ADAM-4570 will cut the
connection between host A and the ADAM-4570.
3. Host B then starts to set up a connection between host B and
the ADAM-4570.
4. If host B is in the authority list, it can access the ADAM-
4570.
                     Figure 3-8: Architecture—Host idle switch mode